Young pterosaurs came ready to fly

时间：2019-03-02 08:14:03166网络整理admin

FLIGHT came early and easily to pterosaurs. Unlike birds and bats, young pterosaurs could fly soon after hatching. The reptiles were also precise flyers capable of making exquisite landings, two fossil discoveries reveal. Before they can fly, birds must develop flight feathers and grow to almost their adult size. Bats are born with only rudimentary limbs, so they must also grow to near-adult size before taking wing. Yet pterosaurs could fly almost immediately, when their wingspan was just 10 to 20 per cent the size of an adult’s,